grade 5 titanium unibody baseplate
manufactured calibre 0s-01
nothing to hide.
everything to show.
Right from the conception, the k-011/os-01 was born from a simple idea: Wear the baseplate directly on the wrist and thus the unique aesthetics was devised.
While being contemporary it keeps a true and pure horological spirit. The beauty and heart of the watch movement are not hidden in a shell, both sides are wide open.

mechanical
motion emotion
oversized tourbillon
We wanted our 60 second 2,5hz Tourbillon regulator to be large enough to fit in a 48mm diameter baseplate. With a 14 mm balance wheel, a cage diameter of 19 mm, our Tourbillon can be appreciated by the naked eye.
sequential trigger dead beat second
The stepped- and constant-wheel are placed on top of each other. They catch up to each other every second. The sequential trigger work together for an accurate true second dance.
pellaton automatic winding system
For increased winding efficiency, we have chosen to employ a Pellaton.
platinum skeletonized micro rotor
Platinum with its high density of 21.45 g/cm³ was the logical choice for a micro rotor to create the necessary energy for the movement. This gives the rotor enough mass to wind our two springs barrel.
speak
your style
From the strap to the Titanium bridge, the hands or the base plate, show your personality and make karoshi watches match your style.
k-011/os-01
strictly limited edition 99 pieces.
technical specifications
skeleton Titanium grade 5 micro-blasted unibody baseplate
diameter 48 mm
weight 21 g
calibre karoshi os-01
mechanical self winding movement
power reserve 50 hours
318 components / 45 jewels
2,5Hz (18’000 vph) balance frequency oscillation
14 mm balance wheel
sequential trigger dead beat second
Platinum micro blasted micro rotor (11,6 g)
Pellaton winding system
Titanium grade 5 bridges
chamfer and Maret polishing and on steel components
burnished pivots
circular decorations on all wheels
Geneva stripes decoration on back bridges
chamfered and polished screws
unibody rubber or leather strap
Titanium grade 5 triple folding clasp, karoshi skull cover
Sapphire crystal with internal and external anti-reflective treatment
9.6 mm edge thickness
thickness at the center of the sapphire glasses 14,2 mm
4dauphine hands
diameter 50 mm
weight 64 g
water resistance up to 3 atm / 30 m / 100 ft
designed, developed and manufactured in Switzerland
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©karoshi watches 2016-2019